Short Term Outcomes After PRoton and PhotoN RadiOtherapy for IDH Mutated Grade 2 and 3 Gliomas

NCT ID: NCT06180434

Last Updated: 2024-10-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

320 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-05-01

Study Completion Date

2025-11-01

Brief Summary

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Rationale:

Proton beam therapy has recently become available for the treatment of patients with WHO grade 2 and 3 IDH mutated (IDHmt) glioma in the Netherlands. The dose distributions associated with proton therapy have substantially reduced the volume of the normal brain irradiated with low and intermediate radiotherapy doses. Whether this impacts rates of progressive disease or safety issues and how this compares with a similar population treated with photon therapy is currently unknown.

Objective:

To investigate short term outcomes after proton and photon radiotherapy for grade 2 and 3 IDHmt glioma.

Detailed Description

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Patients with grade 2 and 3 IDHmt glioma treated with proton therapy in Holland PTC, Maastro and UMC Groningen and referred Erasmus MC, Haaglanden MC, LUMC, Amsterdam UMC, Verbeeten Institute, Maastro, UMC Groningen, and Leuven University Hospital between 1st of January 2018 and the 30th of June 2022. The outcomes will be compared to those from patients with grade 2 and 3 IDHmt glioma treated with photon therapy in the same institutes and during the same period of time. The applied clinical target volume (CTV) margins and the chemotherapy are preferably similar for proton and photon therapy.

Retrospective data will be collected from the electronic records of each participating institute. For the primary outcome, data will be collected on interventions (radiotherapy, surgery, chemotherapy, medication) for either tumor progression or toxicity after radiotherapy. This will be used to calculate next intervention free survival as primary outcome.

For the secondary outcomes, data on survival, disease progression, pseudoprogression, and toxicity will be used to calculate overall survival, progression free survival, and pseudoprogression free survival, as well as toxicity incidence.

Conditions

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Glioma Radiotherapy; Complications

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Proton group

Patients with grade 2 and 3 IDHmt glioma treated with proton therapy in Holland PTC, Maastro Clinic and UMC Groningen.

proton therapy

Intervention Type RADIATION

Radiotherapy delivered with protons

Photon group

Patients with grade 2 and 3 IDHmt glioma treated with photon therapy in Erasmus MC, Haaglanden MC, LUMC, Amsterdam UMC locatie VUmc Site, Verbeeten Institute, Maastro Clinic, UMC Groningen, and Leuven University Hospital.

photon therapy

Intervention Type RADIATION

Radiotherapy delivered with photons

Interventions

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proton therapy

Radiotherapy delivered with protons

Intervention Type RADIATION

photon therapy

Radiotherapy delivered with photons

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* Histopathologically confirmed WHO grade 2 or grade WHO 3 IDHmt glioma
* Treatment with radiotherapy delivered between 1 of January 2018 and completed before or on the 30th of June 2022
* Treatment with chemotherapy delivered after radiotherapy (PCV or Temozolomide)
* Age ≥ 18 years

Exclusion Criteria

* Prior cranial radiotherapy
* Contra-indication for MRI imaging
* Chemotherapy delivered before radiotherapy
* Dose and fractionation other that standard dose (50.4 Gy in 28 fractions for Grade 2 and 59.5 Gy in 33 fractions for Grade 3)
* Combination photon and proton therapy
* Patient has previously opted-out of the use of their data for research
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medical Center Haaglanden

OTHER

Sponsor Role collaborator

Leiden University Medical Center

OTHER

Sponsor Role collaborator

HollandPTC

INDUSTRY

Sponsor Role collaborator

Institute Verbeeten

OTHER

Sponsor Role collaborator

Universitaire Ziekenhuizen KU Leuven

OTHER

Sponsor Role collaborator

University Medical Center Groningen

OTHER

Sponsor Role collaborator

Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

OTHER

Sponsor Role collaborator

Maastro Clinic, The Netherlands

OTHER

Sponsor Role collaborator

Erasmus Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Alejandra Mendez Romero

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Alejandra Mendez Romero, MD PhD

Role: PRINCIPAL_INVESTIGATOR

Assitant Professor, Radiation Oncologist

Locations

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Erasmus MC

Rotterdam, , Netherlands

Site Status RECRUITING

Countries

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Netherlands

Central Contacts

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Steven HJ Nagtegaal, MD PhD

Role: CONTACT

+31(0)107042249

Alejandra Mendez Romero, MD PhD

Role: CONTACT

+31(0)107035829

Facility Contacts

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Steven Nagtegaal, MD PhD

Role: primary

Other Identifiers

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MEC-2023-0727

Identifier Type: -

Identifier Source: org_study_id

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